Tag: cryptography

You use ChaCha20 as your symmetric stream cipher of choice for encrypted containers and then you try to map those containers on a simple TLS connection. If you really tried, you've already noticed the issue. ChaCha20 is NOT a single cipher anymore.

As discussed earlier, using Crypt4GH with remote keys is a vital ingredient to make the whole ecosystem work and protect sensitive genomic data at rest. A similar issue arises when there is a system - such as a repository platform - that needs to process uploaded Crypt4GH containers. With the latest Crypt4GH 0.12 release the solution has arrived.

As a part of our work on new Key Management System (KMS) for rclone, it was more than appropriate to look for prior art. There are well-tested cryptosystems providing file encryption for file systems built on top of block devices. However it has turned out that these systems offer little to no inspiration for an object storage systems encryption.

Faced with the requirement of computing symmetric key from the result of Elliptic-Curve Diffie-Hellman key exchange according to a specification, the primary ingredient for such calculation is the result itself. Read on to see how Interesting things you may find if you need to use YubiKey's OpenPGP Card application as a foundational component of any solution.

If you ever wondered, how does the cryptography Cryptoucan™ actually employ look like and how do the elliptic curves used actually look, now it is time you wonder no more. Read on to see what does the curve used for encryption look like!